Finding out that someone you care about is hurting themselves can feel overwhelming, but your response matters more than you might think. The single most important thing you can do is stay calm, listen without judgment, and focus on the person rather than the behavior. What comes after that first conversation, from helping them find professional support to protecting your own wellbeing, is what this guide covers.
Why People Self-Harm
Understanding why someone self-injures makes it much easier to respond with empathy instead of panic. Self-harm is not about seeking attention, and it’s rarely a direct attempt at suicide. It’s most often a way of coping with emotional pain that feels unbearable.
Two patterns explain most self-injury. The first is what researchers call an emotional cascade: the person replays a painful event or thought over and over, and each pass intensifies the distress until it becomes overwhelming. Self-harm then acts like a pressure valve, bringing a brief but real sense of relief. The second pattern is experiential avoidance, where someone develops such a strong unwillingness to sit with uncomfortable emotions that they reach for any behavior that makes the feeling stop. Both patterns reinforce themselves over time. The more someone suppresses intense emotions, the more reactive their emotional responses become in the future, which increases the need for the coping behavior.
Knowing this helps you understand something critical: the person isn’t choosing self-harm because they lack willpower. Their nervous system is flooded with distress, and this is the tool they’ve found that works. Your role isn’t to take that tool away by force. It’s to help them find better ones.
How to Start the Conversation
The first conversation is the hardest, and it sets the tone for everything that follows. Your goal is simple: make the person feel safe enough to be honest with you.
Be direct but gentle. You can say something like “I’ve noticed some marks on your arms, and I’m worried about you” or “You don’t have to tell me anything you’re not ready to, but I want you to know I’m here.” Avoid dramatic reactions. Gasping, crying, or saying “How could you do this to yourself?” will likely shut the conversation down immediately. The person has probably already spent a long time feeling ashamed, and any reaction that amplifies that shame will push them further away.
Focus on the person, not the self-harm itself. Instead of asking detailed questions about how, when, or how often they hurt themselves, ask about what’s been going on in their life and what feelings are hardest to manage. This shifts the conversation toward the emotional pain driving the behavior, which is where real help begins. Listen more than you talk. By giving them space to be open and honest, you create the conditions for them to eventually accept professional help.
What to Avoid Saying
Certain responses, even well-meaning ones, can do real damage. “Just stop doing it” dismisses how deeply entrenched the behavior is. “You’re being selfish” or “Think about how this makes me feel” redirects the focus onto you and adds guilt to an already painful situation. Ultimatums like “If you don’t stop, I’m telling everyone” will destroy trust. Similarly, don’t promise to keep it a complete secret if the person is in serious danger. You can say “I won’t share this casually, but if I’m worried about your safety, I may need to involve someone who can help.”
Helping Them Access Professional Support
Your support matters, but you are not a therapist, and you shouldn’t try to be one. Encouraging the person to connect with a mental health professional is one of the most helpful things you can do.
Dialectical Behavior Therapy, commonly called DBT, has the strongest evidence base for self-harm. A clinical trial published in JAMA Psychiatry found that among adolescents who received DBT, about 57% stopped self-injuring during treatment, compared to 40% in a comparison therapy group. At one year, over half of the DBT group was completely self-harm free. DBT works by teaching specific skills for tolerating distress, regulating emotions, and navigating relationships, which are exactly the areas where people who self-harm tend to struggle.
Cognitive behavioral therapy (CBT) is another option, particularly when self-harm is connected to depression or anxiety. The right fit depends on the individual, so if one therapist or approach doesn’t click, encourage them to try another. You can offer practical help here: looking up therapists who specialize in self-harm, helping them make the first appointment, or even sitting in the waiting room if that makes it less intimidating. Remove as many barriers as you can without taking over.
If the person isn’t ready for therapy, don’t force it. Pushing too hard can backfire. Let them know the option is there and revisit it periodically.
Alternatives During Moments of Crisis
Between therapy sessions, or before therapy starts, having a toolkit of alternatives can help the person ride out an urge without resorting to self-harm. These aren’t permanent solutions, but they can interrupt the cycle in the moment. Research from Cornell’s Self-Injury and Recovery Program suggests matching the alternative to the specific emotion:
- When feeling angry or overwhelmed: Squeezing ice cubes hard, biting into a hot pepper or lemon, throwing ice against a brick wall outside. These provide an intense physical sensation that can short-circuit the urge.
- When feeling sad or numb: Taking a hot bath with scented oil, applying lotion gently to the areas they normally hurt, lighting incense. These reintroduce positive sensory input.
- When feeling disconnected or unreal: Holding ice, stomping feet on the ground, taking a cold shower, focusing closely on the sensation of breathing. These ground the person back in their body.
- When needing emotional release: Smashing fruit with a bat, throwing eggs in the shower, any physical activity that channels the intensity outward without causing harm.
You can help by keeping some of these supplies accessible. A bag of ice cubes, a lemon, a favorite lotion. Having them on hand means the person doesn’t have to think through alternatives while they’re in acute distress. Some people also find it helpful to draw on the skin with red marker or press red-tinted ice cubes against the area they want to hurt. These simulate the visual element of self-harm without causing injury.
Safety Planning Together
A safety plan is a written, step-by-step guide the person can follow when they feel an urge building. NHS guidance recommends involving trusted people in safety planning whenever possible, and you can be one of those people.
A basic safety plan includes: recognizing the early warning signs that an urge is coming (specific thoughts, situations, or physical sensations), a list of coping strategies to try first, people they can call or text if the strategies aren’t enough, and a clear next step if the urge becomes too strong to manage alone. Write it down on paper or in a phone note. In a crisis, memory becomes unreliable, so having a physical list is essential.
Your name and number on that plan can be genuinely lifesaving. But be realistic about what you’re signing up for. If you agree to be a crisis contact, make sure you can actually follow through most of the time. It’s better to be honest about your availability than to promise something you can’t deliver.
Basic Wound Care
This is a practical reality that many guides skip. If someone you care about has injured themselves, knowing basic first aid helps. Clean the wound gently with water, apply light pressure to stop bleeding, and cover it with a clean bandage. Watch for signs of infection in the days that follow: increasing redness that spreads outward from the wound, warmth, swelling, increasing pain, or any unusual discharge. Any of these signs mean they need medical attention. A wound that’s deep, won’t stop bleeding, or has debris in it also requires professional care.
Treating a wound calmly and without commentary sends a powerful message: you care about this person’s physical safety without shaming them for what happened.
Protecting Your Own Wellbeing
Supporting someone who self-harms is emotionally taxing, and your needs matter too. It’s common to feel anxious, helpless, angry, or guilty. You might start checking on the person constantly or feel a spike of dread every time your phone buzzes. These are normal responses, but left unchecked, they can erode your mental health and eventually your ability to help at all.
Set boundaries that you can maintain long term. This might mean telling the person “I’m always willing to talk, but I need you to also be working with a professional” or “I can’t be available at 3 a.m., but I’ll always check in with you the next morning.” Boundaries aren’t abandonment. They’re what makes sustained support possible.
Build your own support network. Organizations like the National Alliance on Mental Illness (NAMI) offer support groups specifically for family members and close supporters. Talking to a therapist yourself, even briefly, can help you process what you’re going through and develop strategies for staying present without burning out. You cannot pour from an empty cup, and recognizing that is not selfish.
What Recovery Actually Looks Like
Recovery from self-harm is rarely a straight line. There will likely be setbacks, and a relapse doesn’t mean that all progress is lost. The patterns that drive self-harm, emotional cascading and avoidance, took a long time to develop, and they take time to replace.
Your role through this process is to be consistent. Celebrate progress without making it conditional (“I’m so proud of you for going two weeks” can unintentionally create pressure, making a relapse feel like a failure that disappoints you). Instead, reinforce the coping skills they’re building: “I noticed you called me last night instead of hurting yourself. That took a lot of strength.” Keep the focus on the person they’re becoming, not the behavior they’re leaving behind.